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131.
Loriene Roy 《The Reference Librarian》2020,61(2):159-163
ABSTRACT Reference is the word we use for the actions that librarians engage in to answer questions from the public. The art and practice of reference involves many actions that likely can only be understand through engagement. Students in a graduate basic reference class engage in active learning to introduce themselves to their classmates and to understand how to define what reference is. Both activities involve placing words in context. 相似文献
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137.
TEACHING WITH TELEVISION: AN AMERICAN SYSTEM 总被引:1,自引:1,他引:0
The origins and growth of the use of CCTV at Worcester Polytechnic Institute are described, together with the present range of activities. VCR material forms an important component in many courses: the special facilities created to allow easy preparation of this material, either as a straightforward lecture or in a classroom situation with feedback, are dealt with 相似文献
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139.
Roy B. Clariana Daren Wagner Lucia C. Roher Murphy 《Educational technology research and development : ETR & D》2000,48(3):5-22
This investigation considers the effects of feedback on memory with an emphasis on retention of initial error responses. Based
on a connectionist model (Clariana, 1999a), this study hypothesized that delayed-retention memory of initial lesson responses
would be greater for delayed feedback compared to immediate feedback, that feedback effects will be greatest with difficult
items, and that there would be a disordinal interaction of feedback timing and item difficulty. High school students (n =
52) completed a computer-based lesson with either delayed feedback, single-try immediate feedback, or multiple-try immediate
feedback. There was a significant difference for type of feedback, with retention test memory of initial lesson responses
greater under delayed feedback than under immediate feedback. Also, instructional feedback effects varied depending on lesson
item difficulty. The findings indicate that a connectionist model can explain instructional feedback effects. 相似文献
140.
Mukhopadhyay M Sinha R Pal M Bhattacharyya S Dan A Roy MM 《Indian journal of clinical biochemistry : IJCB》2011,26(3):274-278
The progress of fracture union requires close monitoring. Whereas, clinical examination and radiographic studies assess the
outcome, biochemical markers like serum alkaline phosphatase and urinary hydroxyproline reflect the actual status of bone
resorption and bone formation over a short time frame. 36 patients of long bone fracture were randomly allocated for the study.
When the patient reported to the Department of Orthopedics after fracture, serum and urinary samples were collected and X-ray
of the affected part were taken. Subsequent samples were collected and X-ray taken just after management (either operative
or conservative), after 3rd, 5th, 8th and 12th week, respectively after onset of fracture. According to the course of callus
formation the patients were divided into two groups that progressed to proper union or malunion. The levels of serum alkaline
phosphatase, urinary total and free hydroxyproline levels were measured and statistically analysed and compared. A statistically
significant positive correlation between total urinary hydroxyproline excretion and serum alkaline phosphatase indicate progress
towards satisfactory union. Thus, serial monitoring of biochemical markers of bone turnover can be used as an adjunct to clinical
and radiological evidence of fracture healing. 相似文献